All categories

3 years ago

Find the area of the shaded sector. PLZ HELP!:)

Mathematics

2 answers:

Strike441 [17]3 years ago

8 0

Answer:

Area of whole circle, i.e. 360 degrees = π(8.91)(8.91) = 79.3881 sq. cm

Area of 1 degree = 0.2205225 sq.cm.

Area of 81 degrees = 17.8623225 sq.cm.

sertanlavr [38]3 years ago

6 0

Answer:

<u>56.11</u>

Step-by-step explanation:

i just had the assignment on acellus. it's correct

You might be interested in

Which rule describes the composition of transformations that maps ΔJKL to ΔJ"K"L"?

GarryVolchara [31]

Answer:

gj got the answer lol

Step-by-step explanation:

The rule for counter-clockwise (ccw) rotation is (x,y) change to (-y,x). Lmk if you're still stumped :D

7 0

3 years ago

Distributive property of 12x9+12X7

melomori [17]

Answer:

12(9+7)

Hope this helps :)

5 0

3 years ago

Read 2 more answers

Let u = (1, k) and v = (2, 1). Find k such that The distance between u and v is 1 u and v are orthogonal The angle between u and

SVETLANKA909090 [29]

Answer:k=1,k=-2,k= $8\pm 5\sqrt{3}$

Step-by-step explanation:

Given two vectors

$u=1\hat{i}+k\hat{j}$

$v=2\hat{i}+1\hat{j}$

$\left ( i\right )$ Distance between them is given by

$|u-v|=\sqrt{\left ( 2-1\right )^2+\left ( 1-k\right )^2}=1$

squaring both side

$1^{2}+\left ( 1-k\right )^2=1$

$k^2-2k+1=0$

$\left ( k-1\right )^2=0$

k=1

$\left ( ii\right )$

angle between u and v is 90 i.e. orthogonal

$u\dot v=0$

$\left ( 1\hat{i}+k\hat{j}\right )\dot \left ( 2\hat{i}+1\hat{j}\right )$ =0

2+k=0

k=-2

$\left ( iii\right )$

angle between u & v is $\frac{\pi }{3}$

$u\dot v=|u||v|cos\left (\frac{\pi }{3}\right )$

$|u|=\sqrt{1^2+k^2}$

$|v|=\sqrt{2^2+1^2}$

$2+k=\left ( \sqrt{1+k^2}\right )\left ( \sqrt{5}\right )cos\left ( \frac{\pi }{3}\right )$

$\left ( 4+2\right )^2=\left ( 1+k^2\right )5$

$k^2-16k-11$ =0

k= $8\pm 5\sqrt{3}$

7 0

3 years ago

Rewrite the equation in logarithmic form: 4^3 = 64

storchak [24]

4^3 = 64

log4 64 = 3

The exponent always comes to the other side.

8 0

3 years ago

Using a calculator or otherwise, calculate the exact value of 498.79×14.38. Round your answer to one (1) decimal place.

GuDViN [60]

Answer:

7172.6

Step-by-step explanation:

7 0

2 years ago